1 files changed, 81 insertions, 0 deletions
diff --git a/actionview/lib/action_view/helpers/tags/label.rb b/actionview/lib/action_view/helpers/tags/label.rb
new file mode 100644
index 0000000000..02bd099784
--- /dev/null
+++ b/actionview/lib/action_view/helpers/tags/label.rb
@@ -0,0 +1,81 @@
+# frozen_string_literal: true
+
+module ActionView
+  module Helpers
+    module Tags # :nodoc:
+      class Label < Base # :nodoc:
+        class LabelBuilder # :nodoc:
+          attr_reader :object
+
+          def initialize(template_object, object_name, method_name, object, tag_value)
+            @template_object = template_object
+            @object_name = object_name
+            @method_name = method_name
+            @object = object
+            @tag_value = tag_value
+          end
+
+          def translation
+            method_and_value = @tag_value.present? ? "#{@method_name}.#{@tag_value}" : @method_name
+
+            content ||= Translator
+              .new(object, @object_name, method_and_value, scope: "helpers.label")
+              .translate
+            content ||= @method_name.humanize
+
+            content
+          end
+        end
+
+        def initialize(object_name, method_name, template_object, content_or_options = nil, options = nil)
+          options ||= {}
+
+          content_is_options = content_or_options.is_a?(Hash)
+          if content_is_options
+            options.merge! content_or_options
+            @content = nil
+          else
+            @content = content_or_options
+          end
+
+          super(object_name, method_name, template_object, options)
+        end
+
+        def render(&block)
+          options = @options.stringify_keys
+          tag_value = options.delete("value")
+          name_and_id = options.dup
+
+          if name_and_id["for"]
+            name_and_id["id"] = name_and_id["for"]
+          else
+            name_and_id.delete("id")
+          end
+
+          add_default_name_and_id_for_value(tag_value, name_and_id)
+          options.delete("index")
+          options.delete("namespace")
+          options["for"] = name_and_id["id"] unless options.key?("for")
+
+          builder = LabelBuilder.new(@template_object, @object_name, @method_name, @object, tag_value)
+
+          content = if block_given?
+            @template_object.capture(builder, &block)
+          elsif @content.present?
+            @content.to_s
+          else
+            render_component(builder)
+          end
+
+          label_tag(name_and_id["id"], content, options)
+        end
+
+        private
+
+          def render_component(builder)
+            builder.translation
+          end
+      end
+    end
+  end
+end